.button {
  padding: 3px 10px;
  font-size: 12px;
  border-radius: 3px;
  border: 1px solid #e1e4e8;
}

.box-container {
  border:1px solid pink;
}
.box {
  height: 200px;
  width: 200px;
  position:absolute;
}
.red {
  background-color: red;
}
.green {
  background-color: green;
}
.yellow {
  background-color: yellow;
}

.box-container::after{
  content:'';
  display: table;
  clear: both;
}

// .box-container::before{
//   content:'';
//   display: block;
//   clear:both;
// }

body{
  background-image: url('../assets/蒙版组\ 2.png'),url('../assets/矩形\ 1.png');
  background-size: cover, cover;
  background-position: top, top;
}